anonymous
  • anonymous
Help please! Find the domain of the function: 5x+4/ x^2+3x+2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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jim_thompson5910
  • jim_thompson5910
you cannot divide by zero
jim_thompson5910
  • jim_thompson5910
so if x^2+3x+2 were zero, then x^2+3x+2 = 0 (x+1)(x+2) = 0 x+1 = 0 or x+2 = 0 x = -1 or x = -2
jim_thompson5910
  • jim_thompson5910
this means that if x = -1 or x = -2, then x^2+3x+2 = 0 so this tells us that the domain is the set of all real numbers but x cannot equal -1 and it cannot equal -2 (to avoid dividing by zero)

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anonymous
  • anonymous
Thanks!

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